o-Dianisidine Dihydrochloride Equivalent (3,3'-Dichlorobenzidine 2HCl) from Canada
High-purity 3,3'-Dichlorobenzidine dihydrochloride used as o-dianisidine equivalent in pigment manufacturing, classified specifically under HTS 2921.59.80.10. Meets Chapter 29 requirements for chemically defined aromatic polyamine salts.
Duty Rate — Canada → United States
110%
Rate breakdown
9903.04.6093.5%Except as provided in heading 9903.04.61, patented pharmaceutical articles as provided for in subdivisions (c) and (d) of U.S. note 40 to this subchapter
9903.05.2910%Except for products described in headings 9903.05.85–9903.05.93, articles the product of Canada, as provided for in U.S. note 52 to this subchapter
Import Tips
• Reference CAS No. 612-83-9 in commercial invoice and provide synonym cross-reference documentation
• Segregate from finished pigments during import to avoid Chapter 32 reclassification
• Include Material Safety Data Sheet (MSDS) detailing handling as suspected carcinogen